DOC: Fix verbatim block in `UpdatingThirdParty` doc file
DOC: Fix verbatim block in `UpdatingThirdParty` doc file

Fix verbatim block in `UpdatingThirdParty` doc file.

Kitware/ITK,Kitware/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,LucasGandel/ITK,Kitware/ITK,thewtex/ITK,vfonov/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,richardbeare/ITK,hjmjohnson/ITK,LucasGandel/ITK,richardbeare/ITK,richardbeare/ITK,InsightSoftwareConsortium/ITK,richardbeare/ITK,Kitware/ITK,Kitware/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,vfonov/ITK,richardbeare/ITK,richardbeare/ITK,BRAINSia/ITK,BRAINSia/ITK,thewtex/ITK,vfonov/ITK,Kitware/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,vfonov/ITK,BRAINSia/ITK,hjmjohnson/ITK,thewtex/ITK,hjmjohnson/ITK,thewtex/ITK,hjmjohnson/ITK,BRAINSia/ITK,vfonov/ITK,LucasGandel/ITK,vfonov/ITK,hjmjohnson/ITK,LucasGandel/ITK,InsightSoftwareConsortium/ITK,hjmjohnson/ITK,BRAINSia/ITK,thewtex/ITK,thewtex/ITK,thewtex/ITK,hjmjohnson/ITK,LucasGandel/ITK,richardbeare/ITK,vfonov/ITK,Kitware/ITK,BRAINSia/ITK,BRAINSia/ITK